Home / 103,131.14-154,696.85-28,251.95

Finding the Fourth Proportional to 103,131.14, 154,696.85 and 28,251.95

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Solution

The fourth proportional to 103,131.14, 154,696.85 and 28,251.95 is: 42,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.14 : 154,696.85 = 28,251.95 : x
  2. Step 2: Convert to fraction form
    103,131.14/154,696.85 = 28,251.95/x
  3. Step 3: Cross multiply
    103,131.14x = 154,696.85 × 28,251.95
  4. Step 4: Simplify right side
    103,131.14x = 4,370,487,530.10
  5. Step 5: Solve for x
    x = 4,370,487,530.10/103,131.14
  6. Step 6: Final answer
    x = 42,377.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.